Attoi



(ModeL) W. B. WALDRON & G. O. BOLLER.

' SEAL LOCK.

No. 379,348. Patented Mar. 13, 1888.

INVBNTOR ATTOR Nv PETERS P'wiD-Lihhognphc Walhingion. D. C.

ilNITED STATES PATENT Grrrcs.

WARREN BIOKFORD WALDRON AND GEORGE CARL EOLLER, OF FOLSOM CITY,CALIFORNIA.

SEAL-LOCK.

SPECIFICATION forming part of Letters Patent No. 379,348, dated March13, 1888.

Application filed July 6, 1887. Serial No. 243,503. (ModeL) I To allwhom it may concern:

Be it known that we, WVARREN BICKFORD WALDRON and GEORGE CARL BoLLER, ofFolsom City, in the county of Sacramento and 5 State of California, haveinvented a new and Improved Seal-Lock, of which the following is a full,clear, and exact description.

The object of our invention is to provide a lock which may be used as anordinary padlock, but whichis more especially designed as a seal-lockfor use on freight-cars while they are in transit, the parts being soarranged that the lock cannot be opened or tampered with without firstbreaking or otherwise injuring 1 the seal.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar figures of reference indicatecorresponding parts in all the views.

Figure 1 is a side view of our improved form of lock, the seal beingrepresented as it appears when in position and secured to the lock-ease.Fig. 2 is a plan view of the lock, a portion of the shackle being brokenaway. 25 Fig. 3 is a cross-sectional view taken on line 00 a: of Fig. 1.Fig. 4 is a view of the lock with the escutcheon removed. Fig. 5 is aview of the inner face of the escutcheon. Fig. 6 is a centrallongitudinal sectional view, the 3:) view being taken on line y y ofFig. 2; and Fig. 7 is a view of one of the seal-blanks.

In the drawings, 10 represents the lock-case, in the upper portion ofwhich there is formed a longitudinal groove, 11, in which there ismounted a lockingbolt,-12, that is formed with a forwardly-extendingnose, 13, the upper face of which is rounded off, as shown-at 3, thebolt being normally forced forward by a spring, 14, that is housedwithin the inner end of the groove 11.

In advance of the groove 11 there is a vertical groove, 15, in whichthere is arranged a spring, 16, that'carries a cap, 17, the upper 1 faceof the cap being provided with a pin, 18, 5 which acts as a stop andprevents the spring 14 from forcing the bolt 12 too far forward.

The bow or shackle 20 is hinged tothe lockcase, and enters the verticalgroove 15 through a bushing, 21, that is fixed in the upper plate 5c oftheloclccase, this bushing being formed with an upwardly-extendingridge, 4, which enters an undercut groove that is formed just above thehook 22 of the shackle 20, this arrangement being provided in order thatsnow, hail, 850., will be kept out of the inside of the lock case. Inintroducing the bolt 12 it is passed in through the forward open end ofthe groove 11, which end is subsequently closed by a plug, 19. The bolt12 has a shoulder, 5, in order that it may be engaged by the bit of thekey, which key should be formed to fit over the key'post 6 and a barrel,7, which surrounds said post.

To the under face of the lock-case there is secured a prong, 23,while asimilar prong, 24, is carried by the shackle 20, the point of this prong24 being arranged to enter a recess or depression, 25, that is formed inthe upper face of the lock-case, and beyond this recess there is akeeper, 26, which extends across a portion of the upper face of thelock-case.

The key-hole opening in the escutcheon is closed by a plate, 27,which iscarried by a pin,

28, that extends through an aperture in the lock-casing or itscscutcheon 30. The inner 7 end of the pin is provided with a notch whichreceives the inner end of the coiled spring 31, the opposite end of thespring being connected to the casing by means of the pin 32 on the innerface of the escutcheon. By this construction if the plate 27 is swungfrom over the key-hole the pin 28 will be rotated and the spring woundthereon after the manner of a clock-spring on its arbor. The unwindingor expanding of the spring will return the plate to its proper positionover the key-hole. A ridge, 8, is formed about the key-hole and a recessis formed upon the inner face of the plate, in order that said plate maypass over this ridge, this construction being adopted to 0 prevent theentrance of rain or snow through the key-hole.

In connection with the lock described we employ a sealing-plate, 4.0, ofthe form illustrated in Fig. 7, said plate being provided with a shorttongue, 41, that has an aperture, 42, and with a longer tongue, 43,which is not apertured.

From the construction described it will be seen that if the key isturned so that the bolt :00

12 will be forced back against the action of the spring 14 the spring 16will act to throw the hook and shackle out of the lock-case; but it willalso be seen that if the pressure upon the bolt is relaxed and the hookof the shackle forced inward said book will be automatically engaged bythe bolt.

In order to apply the seal,the key is removed from the lock and thetongue 41 is brought into engagement with the prong 23, said prong beingpassed through the aperture 42 of the tongue. The seal-blank is thenbent up across the face of the escutcheon, the tongue43 being carriedover the upper face of the lock-case above the recess 25 and beneath theprong 24, the extreme end of the tongue being passed under the keeper26. Then the shackle is forced downward and its prong 24 will indentthat portion of the tongue 43 which is above the recess 25, and afterthe bolt has once engaged with the hook of the shackle it will beimpossible to open the lock without breaking or defacing the seal.

It will be noticed that the tongue 43 extends from the body of the sealat an obtuse angle to the tongue 41, in order that it may be bent overin the path of the prong 24, and .yet allow the body of the seal to lieflat upon the look.

In order that the seal may be broken, we provide an opening attachmentsuch as that shown 'at A, said opening attachment consisting of a hookedarm, 12, which is adapted to enter the space between the escutcheon andthe lower portion of the main body of the seal, as indicated by dottedlines in Fig. 1. Then if the opening attachment be moved forward andupward the seal will be broken upon a line corresponding with the dottedline shown at c in Fig. 7. At the other end of this opening attachmentthere is asplit ring, a, upon which the key of the lock may be placed.

Having thus fully described our invention, we claim as new and desire tosecure by Letters Patent- 1. The combination, with a lock-case formedwitha horizontal groove and a vertical groove, of a bolt mounted in thehorizontal groove, a spring arranged in connection with the bolt, a capcarrying a stop, a spring arranged beneath the cap, the cap and springbeing mounted in the vertical groove, and a shackle having a hookedpoint adapted to enter the vertical groove, substantially as described.

2. The combination, with a lock-case, of an escutcheon formed with aridge, 8, and a keyhole plate formed with a recess adapted to re- (eivesaid ridge, whereby the key-hole is closed against the entrance of rain,snow, 850., substantially as described.

3. A lock-case formed with a prong, 23, in combination with a shackleformed with 3. prong, 24, a recess being formed in the lockcaseinposition to receive the point of the prong 24, substantially asdescribed.

4. A lock-case provided with aprong, 23, a recess, 25, and a keeper, 26,in combination with a shackle that is provided with a prong, 24,substantially as described.

5. A seal forlocks of the character described, consisting,essentially,of a blank provided with tongues 41 and 43 at its oppositeends, the tongue 41 being provided with an aperture, 42, and the tongue43 projecting from the body at an obtuse angle to the tongue 41,substantially as described.

WARREN BICKFORD WALDRON. GEORGE CARL BOLLER.

Witnesses:

FREDERICK PARKER BURNHAM, EDW'ARD R. LEVY.

